US Bridges

CR 450 East over Bosman Ditch

Fair

Delaware County, Indiana · 00.15 N of CR 850 N · Structure no. 1800032

Built
1985
40 years old
Condition
Fair
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
90
2023 count
Owner
County
County Highway Agency

About this bridge

CR 450 East over Bosman Ditch is a prestressed concrete box beam or girders - multiple carrying CR 450 East over Bosman Ditch in Delaware County, Indiana. It was built in 1985, so it is 40 years old, younger than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 90 vehicles a day, roughly 1% of them trucks, projected to reach 150 by 2043. The structure is 62 ft (18.8 m) long and 24 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesCR 450 East
CrossesBosman Ditch
Location00.15 N of CR 850 N
RouteCounty Highway 261
CountyDelaware County
StateIndiana
Coordinates40.31565, -85.30437
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating39.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length62 ft (18.8 m)
Longest span61 ft (18.5 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2023)
Projected traffic150 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 450 East over Bosman Ditch built?

It was built in 1985, making it 40 years old in 2025.

What condition is CR 450 East over Bosman Ditch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does CR 450 East over Bosman Ditch carry?

About 90 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is CR 450 East over Bosman Ditch?

The structure is 62 ft (18.8 m) long with a longest span of 61 ft (18.5 m) and a deck 24 ft wide.

Who owns CR 450 East over Bosman Ditch?

It is owned by the County Highway Agency.